Canada, Newfoundland and Labrador, Division No. 1, Fairhaven, Placentia Bay
47.543333 -53.908333
47° 32.6' N; 53° 54.5' W
Growing commonly in the degenerating remains of Monostroma grevillei, on Cladophora rupestris, in high intertidal pools, a moderately exposed location. Water 4° C, air 15° C, salinity 25.19°/oo.